JPS6112270Y2 - - Google Patents

Info

Publication number
JPS6112270Y2
JPS6112270Y2 JP17943480U JP17943480U JPS6112270Y2 JP S6112270 Y2 JPS6112270 Y2 JP S6112270Y2 JP 17943480 U JP17943480 U JP 17943480U JP 17943480 U JP17943480 U JP 17943480U JP S6112270 Y2 JPS6112270 Y2 JP S6112270Y2
Authority
JP
Japan
Prior art keywords
transmission
shaft
gear
input shaft
wheels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP17943480U
Other languages
Japanese (ja)
Other versions
JPS57100532U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17943480U priority Critical patent/JPS6112270Y2/ja
Publication of JPS57100532U publication Critical patent/JPS57100532U/ja
Application granted granted Critical
Publication of JPS6112270Y2 publication Critical patent/JPS6112270Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Description

【考案の詳細な説明】 本考案は前車輪のみを駆動する第1走行状態、
後車輪のみを駆動する第2走行状態、及び、全車
輪を駆動する第3走行状態とに切換え自在に構成
してある農用車輌に関する。
[Detailed description of the invention] The invention is based on a first running state in which only the front wheels are driven;
The present invention relates to an agricultural vehicle configured to be switchable between a second running state in which only the rear wheels are driven and a third running state in which all wheels are driven.

従来、前車輪のみを駆動する第1走行状態、後
車輪のみを駆動する第2走行状態、及び、全車輪
を駆動する第3走行状態とに切換え自在に構成す
るに当つては、実開昭49−101421号公報に示され
る如く、端部に入力ギアを備えた前輪への伝動軸
と端部に入力ギアを備えた後輪への伝動軸とを同
芯状に突き合せ、これら各伝動軸に、前記各入力
ギアに夫々近接させて変速機構からの出力ギアを
遊嵌して設け、そして、これら各ギアの外周部
に、前記複数のギアにわたつて咬合する広巾の内
歯ギアを設けて、前記内歯ギアを2枚のギアに咬
合させて、中立、前輪のみ、又は、後輪のみ駆動
する状態と、3枚のギアに咬合させて前後輪を駆
動すべく構成していた。
Conventionally, in configuring a configuration that can be freely switched between a first running state in which only the front wheels are driven, a second running state in which only the rear wheels are driven, and a third running state in which all wheels are driven, As shown in Publication No. 49-101421, a transmission shaft for the front wheels, which has an input gear at the end, and a transmission shaft for the rear wheels, which has an input gear at the end, are butted concentrically, and each of these transmissions is Output gears from the transmission mechanism are loosely fitted to the shaft in proximity to each of the input gears, and a wide internal gear is provided on the outer periphery of each of the gears to engage with the plurality of gears. The internal gear is configured to be engaged with two gears to drive the neutral, only the front wheels, or only the rear wheels, and to be engaged with three gears to drive the front and rear wheels. .

ところが、このような構造によれば、前後輪を
駆動する場合には、内歯ギアを3枚のギアに咬合
させなければならず、両側のギアに対する内歯ギ
アの咬合せが残く、内歯ギアが欠け易いという欠
点があり、その為、周方向の歯の厚さを厚くする
とギア径が大きくなつて伝動機構が大型化する等
の欠点があつた。
However, according to such a structure, when driving the front and rear wheels, the internal gear must be engaged with three gears, and the internal gear remains engaged with the gears on both sides. There is a drawback that the toothed gear is easily chipped, and therefore, when the thickness of the teeth in the circumferential direction is increased, the gear diameter becomes larger and the transmission mechanism becomes larger.

本考案は、上記欠点を解決することを目的とす
る。
The present invention aims to solve the above drawbacks.

上記目的を達成する為の本考案の特徴構成は、
主変速機構16並びに副変速機構19を設けると
共に、前記副変速用の出力ギアG5,G6を後輪へ
の入力軸18に遊嵌して設け、前記後輪への入力
軸18に、前記副変速用の出力ギアG5,G6間に
位置して、前記出力ギアG5,G6に対して択一的
に係合可能な係合部材40を設け、前記後輪への
入力軸18と平行に、前輪への入力軸24に伝動
する互いに突合された同芯状の第1並びに第2伝
動軸21,22を設け、前記一方の第1伝動軸2
1と後輪への入力軸18とをギア機構25を介し
て常時咬合させると共に、他方の第2伝動軸22
に、前記後輪への入力軸18に遊嵌の副変速用出
力ギアの一方G5と常時咬合うギアG7を遊転自在
に設け、前記第1伝動軸21と第2伝動軸22と
の間に、前記第1伝動軸21と第2伝動軸22と
に咬合つて前記後輪への入力軸18を介して前輪
に動力を伝達する状態と、前記第2伝動軸22に
遊嵌のギアG7と前記第2伝動軸22とに咬合つ
て前記後輪への入力軸18を介さず直接副変速ギ
アG5を介して前輪に動力を伝達する状態とに切
換え自在な係合部材41を設けて、前記副変速用
の係合部材40と第1並びに第2伝動用の係合部
材41を介して前車輪1,1のみを駆動する第1
走行状態、後車輪のみを駆動する第2走行状態、
及び全車輪1,1,6,6を駆動する第3走行状
態とに切換自在に構成してある点にあり、斯かる
構成から次の作用光果を奏する。
The characteristic structure of this invention to achieve the above purpose is as follows:
A main transmission mechanism 16 and a sub-transmission mechanism 19 are provided, and the output gears G 5 and G 6 for the sub-transmission are loosely fitted to the input shaft 18 to the rear wheels, and the input shaft 18 to the rear wheels is provided with: An engagement member 40 is provided between the output gears G 5 and G 6 for the auxiliary transmission and can be selectively engaged with the output gears G 5 and G 6 , and an engagement member 40 is provided to provide input to the rear wheels. Parallel to the shaft 18, there are provided first and second transmission shafts 21 and 22 which are concentric but abutted to each other and which transmit power to the input shaft 24 to the front wheels, and one of the first transmission shafts 2
1 and the input shaft 18 to the rear wheel are always engaged through the gear mechanism 25, and the other second transmission shaft 22
A gear G 7 that is loosely fitted to the input shaft 18 to the rear wheel and always meshes with one of the output gears G 5 for auxiliary transmission is provided so as to be freely rotatable, and the first transmission shaft 21 and the second transmission shaft 22 are connected to each other. During this period, the first transmission shaft 21 and the second transmission shaft 22 are engaged with each other to transmit power to the front wheels via the input shaft 18 to the rear wheels, and the second transmission shaft 22 is loosely fitted. An engagement member 41 that can be freely switched to a state in which it meshes with the gear G7 and the second transmission shaft 22 and transmits power directly to the front wheels via the auxiliary transmission gear G5 without going through the input shaft 18 to the rear wheels. A first drive wheel that drives only the front wheels 1, 1 via the auxiliary transmission engagement member 40 and the first and second transmission engagement members 41 is provided.
a running state, a second running state in which only the rear wheels are driven;
and a third running state in which all wheels 1, 1, 6, and 6 are driven, and this arrangement provides the following effects.

すなわち、この種一般の農用車輌においては副
変速装置を備えていることから、その副変速装置
を利用して、前輪のみの操作系と後輪のみの操作
系を分けたことによつて、前後輪を同時に駆動す
る場合には、夫々の操作系を各別に操作すること
によつて、それらの伝動ギアの咬合せをギアの軸
芯方向の巾一杯に咬合させることができ、上記欠
点を解消することができるに至つた。
In other words, since this type of general agricultural vehicle is equipped with an auxiliary transmission, by using the auxiliary transmission to separate the operation system for only the front wheels and the operation system for only the rear wheels, it is possible to When driving the wheels at the same time, by operating each operating system separately, the transmission gears can be brought into engagement with the full width in the axial direction of the gears, which eliminates the above-mentioned drawbacks. I was able to do it.

次に、本考案の実施例を図面に基づいて詳述す
る。
Next, embodiments of the present invention will be described in detail based on the drawings.

左右の操向用前車輪1を備えたフレーム2にエ
ンジン3を搭載し、ミツシヨンケース4から左右
に突出の差動軸5に大径の後車輪6を取付け、こ
のミツシヨンケース4と前記エンジン3をクラツ
チハウジング7を介して連結すると共に、前記後
車輪6,6間に搭乗座席8をかつその前部に操作
部9を配置して、農用車輌の一例のトラクタを構
成してある。
An engine 3 is mounted on a frame 2 equipped with left and right front wheels 1 for steering, and a large-diameter rear wheel 6 is attached to a differential shaft 5 projecting left and right from a transmission case 4. An engine 3 is connected via a clutch housing 7, a passenger seat 8 is disposed between the rear wheels 6, and an operating section 9 is arranged at the front of the seat 8, thereby forming a tractor as an example of an agricultural vehicle.

前記前後車輪1,6に対する駆動構造を構成す
るに、第2図に示すように、変速機構10を介し
て動力取出軸11を連動連結する伝動軸12とそ
れに遊嵌の変速用入力軸13を、前記入力軸13
に対する動力伝達解除後に前記伝動軸12に対す
る動力伝達を解除する2段クラツチ14を介して
前記エンジン3に連動連結し、前記変速用入力軸
13とそれに平行する変速出力軸15の間に前進
4段後進1段のギア式主変速機構16を設け、前
記変速出力軸15に固設のギアG1に常時咬合す
るギアG2を備えた3連ギアGを前記伝動軸12
に遊嵌し、この3連ギアGの歯数の異なる他のギ
アG3,G4に常時咬合するギアG5,G6を、後輪用
差動装置17に対する入力軸18に遊嵌すると共
に、それらのギアG5,G6を前記入力軸18に対
して選択的に係合する係合部材40を設けて、主
変速をさらに2段に変速するギア式副変速機構1
9を設けて、前記主変速機構16と副変速機構1
9により、後車輪6,6を、駆動停止を含めて前
進8段後進2段で変速駆動するようにしてある。
As shown in FIG. 2, the drive structure for the front and rear wheels 1 and 6 includes a transmission shaft 12 that interlocks and connects a power take-off shaft 11 via a transmission mechanism 10, and a transmission input shaft 13 that is loosely fitted to the transmission shaft 12. , the input shaft 13
The engine 3 is operatively connected to the engine 3 through a two-stage clutch 14 which releases power transmission to the transmission shaft 12 after power transmission to the transmission shaft 12 is released, and a four-speed forward gear is connected between the transmission input shaft 13 and the transmission output shaft 15 parallel thereto. A gear type main transmission mechanism 16 with one reverse gear is provided, and a triple gear G having a gear G 2 that is always engaged with a gear G 1 fixed to the transmission output shaft 15 is connected to the transmission shaft 12.
Gears G 5 and G 6 are loosely fitted into the input shaft 18 for the rear wheel differential device 17 and are always engaged with the other gears G 3 and G 4 having different numbers of teeth of the triple gear G. A gear type sub-transmission mechanism 1 further includes an engagement member 40 that selectively engages the gears G 5 and G 6 with respect to the input shaft 18 to further shift the main transmission into two stages.
9 is provided to connect the main transmission mechanism 16 and the auxiliary transmission mechanism 1.
9, the rear wheels 6, 6 are driven at variable speeds in eight forward speeds and two reverse speeds, including drive stop.

そして、同芯状の第1及び第2伝動軸21,2
2と前輪用差動装置23に対する入力軸24を、
夫々前記後輪用入力軸18に平行する状態で設
け、前記入力軸18と第1伝動軸21、及び、第
2伝動軸22と前記入力軸24を常時伝動するギ
ア機構25,27を設け、前記ギアG5に常時咬
合するギアG7を前記第2伝動軸22に遊嵌する
と共に、前記第1伝動軸21にデイスク26を固
設し、これらのギアG7及びデイスク26を第2
伝動軸22に対して選択的に連動連結するための
係合部材41を設けて、前輪のみ、又は、後輪用
入力軸18を介して前輪をも駆動する操作機構2
0を設けると共に、前輪用差動装置23の左右の
差動軸28と操向用ケース29に架設の上下軸3
0、及び、前記上下軸30と前車輪31を、夫々
ベベルギア機構32,33で連動連結し、もつ
て、前記両操作機構19,20に対する切換え操
作により、前記前輪用入力軸24のみを駆動する
前輪駆動の第1走行状態と、後輪用入力軸18の
みを駆動する第2走行状態、及び、前後入力軸1
8,24を連動連結する全輪駆動の第3走行状態
を、夫々選択的に切換え現出できるようにしてあ
る。
The first and second power transmission shafts 21 and 2 are concentric.
2 and the input shaft 24 for the front wheel differential 23,
Gear mechanisms 25 and 27 are provided in parallel to the rear wheel input shaft 18, respectively, and constantly transmit transmission between the input shaft 18 and the first transmission shaft 21, and between the second transmission shaft 22 and the input shaft 24, A gear G 7 that is always engaged with the gear G 5 is loosely fitted to the second transmission shaft 22, and a disk 26 is fixed to the first transmission shaft 21, and these gear G 7 and the disk 26 are connected to the second transmission shaft 22.
An operating mechanism 2 that is provided with an engagement member 41 for selective interlocking connection to the transmission shaft 22 and drives only the front wheels or also the front wheels via the input shaft 18 for rear wheels.
0, and a vertical shaft 3 installed on the left and right differential shafts 28 of the front wheel differential device 23 and the steering case 29.
0, and the vertical shaft 30 and the front wheel 31 are interlocked and connected by bevel gear mechanisms 32 and 33, respectively, and only the front wheel input shaft 24 is driven by a switching operation on both the operating mechanisms 19 and 20. A first running state in which the front wheels are driven, a second running state in which only the rear wheel input shaft 18 is driven, and the front and rear input shaft 1
The third running state of all-wheel drive in which the wheels 8 and 24 are interlocked can be selectively switched and displayed.

前記上下軸30と車軸31を連動連結するベベ
ルギア機構33において、入力側ベベルギア機構
34を、コーン部材を一体連設したボス体34a
と、それに着脱自在にボルト連結されたギア体3
4bから構成し、前記ボス体34aと車軸31
を、車軸側の山aをボス体側の谷bに密嵌させる
インボリユートスプラインによつて嵌合し、か
つ、車軸側インボリユートスプラインにおいて、
ボス体34aの挿入終端側の適当範囲lを除く範
囲l1の山の径d1を、スプライン加工に先立つて他
の範囲lの山の径dよりもやや小径に設定し、も
つて、車軸31に対するベベルギア34の軸長手
方向での倒れを生じさせない状態で、かつ、組付
け容器に、ベベルギア34を車軸31に圧入嵌合
させるようにしてある。
In the bevel gear mechanism 33 that interlocks and connects the vertical shaft 30 and the axle 31, the input side bevel gear mechanism 34 is formed by a boss body 34a integrally connected with a cone member.
and a gear body 3 detachably connected to it by bolts.
4b, the boss body 34a and the axle 31
are fitted by an involute spline that tightly fits the peak a on the axle side into the valley b on the boss body side, and in the involute spline on the axle side,
Prior to spline processing, the diameter d 1 of the crest in the range l 1 excluding the appropriate range 1 on the insertion end side of the boss body 34a is set to be slightly smaller than the diameter d 1 of the crest in the other range l, and then the axle The bevel gear 34 is press-fitted onto the axle 31 in the assembly container without causing the bevel gear 34 to fall down in the longitudinal direction of the shaft relative to the axle 31.

前記前輪用差動装置23を内装するケース35
に前部動力取出軸36を架設し、差動装置23の
方向転換ギア37に咬合するベベルギア38を前
記動力取出軸36に連設し、機体前部において、
プランタやモータ等の作業装置を連動駆動できる
ようにしてある。
Case 35 in which the front wheel differential device 23 is housed
A front power take-off shaft 36 is installed at the front of the fuselage, and a bevel gear 38 that meshes with the direction changing gear 37 of the differential device 23 is connected to the power take-off shaft 36.
It is designed so that working devices such as planters and motors can be driven in conjunction with each other.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案に係る農用車輌の実施例を示し、
第1図は全体側面図、第2図は走行駆動系統図、
第3図は前車輪の車軸部分の断面図、第4図はイ
ンボリユートスプラインの部分詳細図、第5図は
第3図の−線断面図である。 1……前車輪、6……後車輪、16……主変速
機構、18……後輪用入力軸、19……副変速機
構、21,22……第1,第2伝動軸、24……
前輪用入力軸、25……ギア機構、40,41…
…係合部材、G5,G6……副変速用出力ギア、G7
……遊嵌ギア。
The drawings show an example of an agricultural vehicle according to the present invention,
Figure 1 is an overall side view, Figure 2 is a traveling drive system diagram,
3 is a sectional view of the axle portion of the front wheel, FIG. 4 is a detailed partial view of the involute spline, and FIG. 5 is a sectional view taken along the line -- in FIG. 3. DESCRIPTION OF SYMBOLS 1...Front wheel, 6...Rear wheel, 16...Main transmission mechanism, 18...Input shaft for rear wheels, 19...Sub-transmission mechanism, 21, 22...First and second transmission shafts, 24... …
Front wheel input shaft, 25... Gear mechanism, 40, 41...
…Engagement member, G 5 , G 6 … Sub-transmission output gear, G 7
...Playful gear.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主変速機構16並びに副変速機構19を設ける
と共に、前記副変速用の出力ギアG5,G6を後輪
への入力軸18に遊嵌して設け、前記後輪への入
力軸18に、前記副変速用の出力ギアG5,G6
に位置して、前記出力ギアG5,G6に対して択一
的に係合可能な係合部材40を設け、前記後輪へ
の入力軸18と平行に、前輪への入力軸24に伝
動する互いに突合された同芯状の第1並びに第2
伝動軸21,22を設け、前記一方の第1伝動軸
21と後輪への入力軸18とをギア機構25を介
して常時咬合させると共に、他方の第2伝動軸2
2に、前記後輪への入力軸18に遊嵌の副変速用
出力ギアの一方G5と常時咬合うギアG7を遊転自
在に設け、前記第1伝動軸21と第2伝動軸22
との間に、前記第1伝動軸21と第2伝動軸22
とに咬合つて前記後輪への入力軸18を介して前
輪に動力を伝達する状態と、前記第2伝動軸22
に遊嵌のギアG7と前記第2伝動軸22とに咬合
つて前記後輪への入力軸18を介さず直接副変速
ギアG5を介して前輪に動力を伝達する状態とに
切換え自在な係合部材41を設けて、前記副変速
用の係合部材40と第1並びに第2伝動用の係合
部材41を介して前車輪1,1のみを駆動する第
1走行状態、後車輪のみを駆動する第2走行状
態、及び全車輪1,1,6,6を駆動する第3走
行状態とに切換自在に構成してあることを特徴と
する農用車輌。
A main transmission mechanism 16 and a sub-transmission mechanism 19 are provided, and the output gears G 5 and G 6 for the sub-transmission are loosely fitted to the input shaft 18 to the rear wheels, and the input shaft 18 to the rear wheels is provided with: An engagement member 40 is provided between the output gears G 5 and G 6 for the auxiliary transmission and can be selectively engaged with the output gears G 5 and G 6 , and an engagement member 40 is provided to provide input to the rear wheels. Parallel to the shaft 18, abutted concentric first and second shafts transmit power to the input shaft 24 to the front wheels.
Transmission shafts 21 and 22 are provided, and one of the first transmission shafts 21 and the input shaft 18 to the rear wheel are always engaged with each other via a gear mechanism 25, and the other second transmission shaft 2
2, a gear G 7 that is loosely fitted to the input shaft 18 to the rear wheel and always meshes with one of the auxiliary transmission output gears G 5 is provided so as to be freely rotatable, and the first transmission shaft 21 and the second transmission shaft 22
between the first transmission shaft 21 and the second transmission shaft 22.
a state in which power is transmitted to the front wheels via the input shaft 18 to the rear wheels, and a state in which the second transmission shaft 22
can be freely switched to a state in which the loosely fitted gear G7 meshes with the second transmission shaft 22 and power is transmitted directly to the front wheels via the auxiliary transmission gear G5 without going through the input shaft 18 to the rear wheels. A first running state in which an engagement member 41 is provided and only the front wheels 1, 1 are driven via the auxiliary transmission engagement member 40 and the first and second transmission engagement members 41, and only the rear wheels are driven. An agricultural vehicle characterized in that it is configured to be switchable between a second running state in which the vehicle is driven, and a third running state in which all wheels 1, 1, 6, and 6 are driven.
JP17943480U 1980-12-12 1980-12-12 Expired JPS6112270Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17943480U JPS6112270Y2 (en) 1980-12-12 1980-12-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17943480U JPS6112270Y2 (en) 1980-12-12 1980-12-12

Publications (2)

Publication Number Publication Date
JPS57100532U JPS57100532U (en) 1982-06-21
JPS6112270Y2 true JPS6112270Y2 (en) 1986-04-17

Family

ID=29975127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17943480U Expired JPS6112270Y2 (en) 1980-12-12 1980-12-12

Country Status (1)

Country Link
JP (1) JPS6112270Y2 (en)

Also Published As

Publication number Publication date
JPS57100532U (en) 1982-06-21

Similar Documents

Publication Publication Date Title
JPS6157210B2 (en)
JPH10129295A (en) Differential device
US4459874A (en) Transaxle mechanism of four-wheel vehicle drive system
JPH0637141B2 (en) Two-wheel / four-wheel drive switching device
US5079965A (en) Gearbox
KR0164253B1 (en) Automotive gear box
JPS629455B2 (en)
JPS6112270Y2 (en)
US4089237A (en) Change speed transmission in range-type design for motor vehicles
JPS621479Y2 (en)
JPS6230613Y2 (en)
KR0126837B1 (en) Auxiliary t/m power trans device
JP2558235B2 (en) Power transmission device for four-wheel drive vehicle
JPS6326593Y2 (en)
JPS6231296Y2 (en)
JPS5921319Y2 (en) Agricultural tractor travel gear structure
JPH0521464Y2 (en)
JPH0647341B2 (en) Automotive transfer device
JPH0582504B2 (en)
JPH0764210B2 (en) 4-wheel drive
JPH0550866A (en) Power takeoff device for tractor
JPS62180148A (en) Driving train power transmission device of wheel type tractor
CN116816905A (en) Power shift gearbox with three-gear structure
JPS5940046A (en) Vehicular transmission
JPH027336Y2 (en)